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Principles of Inheritance and Variation
Incomplete Dominance in Snapdragon
1 question from 1 paper, each with its answer.
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- paper
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- years asked, 2017–2026
- 1 of 10
- of Principles of Inheritance and Variation
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Concepts tested
- Cross between pink (heterozygous) and red (homozygous) snapdragon
All Questions
2024 1 question
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A pink flowered Snapdragon plant was crossed with a red flowered Snapdragon plant. What type of phenotype/s is/are expected in the progeny?Flower colour in snapdragon shows incomplete dominance: RR = red, Rr = pink, rr = white. Pink (Rr) × Red (RR) gives RR (red) and Rr (pink) in a 1 : 1 ratio. So both red flowered and pink flowered plants are expected.